ABAP Select data from SAP table REEXCHECKACCDET into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REEXCHECKACCDET table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to REEXCHECKACCDET. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the REEXCHECKACCDET table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_REEXCHECKACCDET TYPE STANDARD TABLE OF REEXCHECKACCDET,
      WA_REEXCHECKACCDET TYPE REEXCHECKACCDET,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <REEXCHECKACCDET> TYPE REEXCHECKACCDET.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_REEXCHECKACCDET.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM REEXCHECKACCDET
  INTO TABLE IT_REEXCHECKACCDET.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEXCHECKACCDET
*  INTO TABLE @DATA(IT_REEXCHECKACCDET2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_REEXCHECKACCDET INDEX 1 INTO DATA(WA_REEXCHECKACCDET2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REEXCHECKACCDET ASSIGNING <REEXCHECKACCDET>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEXCHECKACCDET>-FLOWTYPE = 1.
<REEXCHECKACCDET>-XFLOWTYPE = 1.
<REEXCHECKACCDET>-ACCDETKEY = 1.
<REEXCHECKACCDET>-CACCTYPE = 1.
<REEXCHECKACCDET>-CGLACCSYMB = 1.

ENDLOOP.

LOOP AT IT_REEXCHECKACCDET INTO WA_REEXCHECKACCDET.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEXCHECKACCDET-DACCTYPE, sy-vline,
  WA_REEXCHECKACCDET-DGLACCSYMB, sy-vline,
  WA_REEXCHECKACCDET-CGLACCOUNT, sy-vline,
  WA_REEXCHECKACCDET-CSPGLID, sy-vline,
  WA_REEXCHECKACCDET-DGLACCOUNT, sy-vline,
  WA_REEXCHECKACCDET-DSPGLID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEXCHECKACCDET you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_REEXCHECKACCDET TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_REEXCHECKACCDET INTO WA_REEXCHECKACCDET.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field FLOWTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEXCHECKACCDET-FLOWTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXCHECKACCDET-FLOWTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CGLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEXCHECKACCDET-CGLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXCHECKACCDET-CGLACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DGLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEXCHECKACCDET-DGLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXCHECKACCDET-DGLACCOUNT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_REEXCHECKACCDET_STR, 
FLOWTYPE TYPE STRING,
XFLOWTYPE TYPE STRING,
ACCDETKEY TYPE STRING,
CACCTYPE TYPE STRING,
CGLACCSYMB TYPE STRING,
DACCTYPE TYPE STRING,
DGLACCSYMB TYPE STRING,
CGLACCOUNT TYPE STRING,
CSPGLID TYPE STRING,
DGLACCOUNT TYPE STRING,
DSPGLID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEXCHECKACCDET_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_REEXCHECKACCDET_STR-FLOWTYPE sy-vline 
WA_REEXCHECKACCDET_STR-XFLOWTYPE sy-vline 
WA_REEXCHECKACCDET_STR-ACCDETKEY sy-vline 
WA_REEXCHECKACCDET_STR-CACCTYPE sy-vline 
WA_REEXCHECKACCDET_STR-CGLACCSYMB sy-vline 
WA_REEXCHECKACCDET_STR-DACCTYPE sy-vline 
WA_REEXCHECKACCDET_STR-DGLACCSYMB sy-vline 
WA_REEXCHECKACCDET_STR-CGLACCOUNT sy-vline 
WA_REEXCHECKACCDET_STR-CSPGLID sy-vline 
WA_REEXCHECKACCDET_STR-DGLACCOUNT sy-vline 
WA_REEXCHECKACCDET_STR-DSPGLID sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.